Flowers of Argemone hispida
are very similar to flowers of Argemone
polyanthemos. The species can be separated by looking at the stems, leaves
and seed capsules. Stems and capsules of A. hispida are densely prickly.
Leaves of A. hispida are deeply lobed.
Stems of Argemone polyanthemos
are sparsely prickly and leaves are darker green with whitish veins and shallower